WoW, over half a million in under 24 hours. Nice. Though I can't decide what tier to go for... so I have been waiting since yesterday afternoon. I'll go at least 75 but maybe the 100 tier would be the sweet spot for me since I like to keep old game boxes.
On a side note... I'm betting there are a few dozen developers eyeing this option now. And we will soon see a few more throwing their hats into the ring. Can't wait to see what they decide to create or resurrect.